HC110 made simple.
I thought I had posted this to the articles a long time ago, but I guess I didn't. So for the archives and the children, here it is.
I like Hc110. Especially for roll film. I don't like the convoluted "working
solution" dilutions and sub dilutions, or the short times some of the dilutions
and sub dilutions create. It should be simple to use Hc110, like Rodinal.
If you care to research, there was a method to Kodaks madness when they
created the dilutions and routines for HC110, but they are of little
convenience for the darkroom enthusiast. I get more questions about
mixing and developing with HC110 than all other developers combined. It is
a great developer that doesn't need to be complex in usage, so I concocted a
metric dilution that goes by 50 (1+49) That means you use 1 ml of HC110 for
every 49 ml of water in a direct from the concentrate dilution.
Here is how to use it on roll film in an inversion tank, like Rodinal:
First of all, forget about saving and replenishing it. Mix up what you need, use
it, and dump it. It's so cheap under normal usage that saving it is fairly
useless from a cost savings perspective, plus consistent performance is
assured by using it one-shot.
Next, forget about an intermediate working solution. Mix it directly from the
concentrate. Use a small bottle and a baby syringe (available at any drug
store) to mix directly from the concentrate. Simply mix it 1+49 . Use the times
below as a starting guide (you may not expose the same as me, or may not
have the same taste in negatives, so these are only suggestions that should
get you in the ballpark to do your own tweeking)
So without further ado,
Hc110 direct from concentrate-1+49 , 68f 20c, agitate first 30s with 2
inversions every 30s thereafter.
****Note to the civilized-Please keep in mind that this methodology is for the
US version of the concentrate*****
Acros100 @ 100 - 8 min
Efke 25 @ 20 - 10.5 min
Efke100 @ 100 - 10 min
Ilford FP4+ @ 64 - 9 min
Ilford FP4+ @ 125 - 11 min
Ilford HP5 @ 400 - 8 min
Ilford HP5 @ 800 - 11.5 min
Plus X @ 125 - 8 min
Tmax100 @ 100 - 9 min
Tmax400 @ 400 - 9 min
TriX320 @ 320 -8 min
TriX400 @ 400 - 8 min
The following was provided by photographer David William White:
Arista EDU-Ultra 100 @ 100 - 6.5 min
Ilford Pan F+ @ 50 - 5.5 min
A friend of mine in Texas says that in the Summer, he hooks up his well to the hot water pipes, turns off the gas to his water heater, and hooks it up to the cold water pipes. The water heater's inside his air-conditioned farmhouse.
Ever been to Texas, Stone?
Yea, I bought a car there and drove it to CT.... Still have it... A Datsun280zx
Originally Posted by c.d.ewen
has anyone tried Delta 100 @100 with this dilution? 8 minutes? 9 minutes? I have no idea about the Delta emulsions as I normally use Acros 100. thanks.
From the North American concentrate, I use a syringe (without the metal needle) to suck up 15ml of hc110. I squirt it into 1500ml of water, @ 20C, in my Patterson tank. It takes 5 rolls of 35mm or 3 rolls of 120 film. 1 minute initial agitation, then 1 minute agitation after 20 minutes, dump after 40 minutes. Easy-peasy!
I'll suck up water/developer into the syringe to rinse it out into the developing tank to get it all.
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thanks Frank, but I am hoping to find a time for this 1+49 dilution for Delta 100. I suppose I could just try 8 minutes and see what happens? Delta 100 is now cheaper than Acros 100 (seems like just yesterday Acros was $3 and change) so thinking of making the switch, though it'll be a bit more of a pain for long exposures.
Sorry, I was responding to this thread in general, not your post in particular.
Originally Posted by nwilkins
Huh? 1500ml in a 1L tank? Confused...
Originally Posted by frank
Where did you get 1L tank?
Originally Posted by StoneNYC
My Patterson 5 reel tank is 1L
Originally Posted by frank
Are you sure? Doesn't a single roll of 35mm film need 290ml to cover it?